Specialized Filters & Replacement Valves

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Replacement control valves, filter heads, and repair parts for the systems we sell and support every day: Fleck (Pentair) 5600SXT, 2510SXT, 2510AIO, and 9100SXT control valves, and Clack C-Series upflow heads like the C1190. If the valve on your water softener, iron filter, carbon filter, or acid neutralizer has failed, a direct-fit replacement head is almost always far cheaper than a new system, and most swaps take under an hour with basic tools. Which valve fits which system? Fleck 5600SXT : the most common residential water softener valve in America, also used on lighter-duty backwashing filters. If your softener has a small digital display on a compact head, this is probably it. See our Fleck 5600SXT owner's guide to confirm. Fleck 2510SXT : the heavier-duty digital valve used on larger backwashing filters (iron, carbon, backwashing acid neutralizers) and bigger softeners. The 2510AIO version adds air injection for iron and sulfur filters; the two are not interchangeable, so match the exact model on your head. Clack C-Series (C1190 / C1190FP) : the upflow head used on non-backwashing acid neutralizers and carbon filters. No drain line, no electricity. Deciding between brands for a new system? Read Clack vs Fleck . Check these three things before you buy Exact model. Match the model stamped on your valve body or printed on the control board (5600 mechanical vs 5600SXT digital vs 2510SXT). A digital SXT head and a mechanical timer head do not share pistons, boards, or repair kits. Tank and year. These valves fit standard 2.5 inch top-mount mineral tanks, which covers nearly every residential softener and filter built in the last few decades. If your system is much older or an unusual brand, send us a photo first. Media condition. Be honest about the bed inside the tank. Softener resin typically lasts 10 to 15 years, and filter media beds also wear out. A new valve on a fouled or exhausted bed gives you a working valve on a system that still will not treat your wat

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